#4039D3#4039D3

#4039D3 is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.5% C 0.225 H 275.2°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX#4039D3
RGBrgb(64, 57, 211)
HSLhsl(243, 64%, 53%)
HSVhsv(243, 73%, 83%)
CMYKcmyk(69.7%, 73%, 0%, 17.3%)
CIE-LABlab(35.44, 50.47, -77.52)
CIE-LCHlch(35.44, 92.51, 303.07°)
OKLaboklab(46.5% 0.0202 -0.2241)
OKLCHoklch(46.5% 0.225 275.2)
XYZxyz(15.3315, 8.7179, 62.4901)
Luminance0.0872 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4039D3 #CCD339
analogous
#397FD3 #4039D3 #8D39D3
triadic
#4039D3 #D34039 #39D340
tetradic
#4039D3 #D3397F #CCD339 #39D38D
square
#4039D3 #D3397F #CCD339 #39D38D
split-complementary
#4039D3 #D38D39 #7FD339
monochromatic
#1F1A77 #2C26A9 #4039D3 #706BDE #A19DE9

Accessibility & contrast

On white

7.65
#4039D3 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.74
#4039D3 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4039D3
7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4039D3#FFFFFF#000000##FFFFFF
##4039D31.007.652.747.65
#FFFFFF7.651.0021.001.00
#0000002.7421.001.0021.00
##FFFFFF7.651.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005AD8
Deuteranopia (green-blind)
#004CD0
Tritanopia (blue-blind)
#006583
Achromatopsia (no color)
#535353

Design tokens & code

CSS
--color: #4039d3;
/* rgb */ color: rgb(64, 57, 211);
/* oklch */ color: oklch(46.5% 0.225 275.2);
Tailwind
colors: {
  custom: {
    50: '#8971e2',
    500: '#4039d3',
    950: '#000000',
  },
}
SCSS
$custom: #4039d3;
$custom-light: #8971e2;
$custom-dark: #000000;
JSON
{
  "hex": "#4039d3",
  "rgb": {
    "r": 64,
    "g": 57,
    "b": 211
  },
  "hsl": {
    "h": 242.727,
    "s": 63.636,
    "l": 52.549
  },
  "oklch": {
    "l": 0.46503,
    "c": 0.22504,
    "h": 275.2
  },
  "luminance": 0.08719
}

Semantic roles & 50–950 ramp

primary
#4039D3
secondary
#D2D592
accent
#E741DF
background
#F9F7FE
surface
#F2EDFC
border
#CCC8D5
text
#0D0816
muted
#7E7B84

Preview Lab

Preview with #4039D3

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#4039D3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva